/Engine/Plugins/Animation/ControlRig/Source/ControlRig/Public/Rigs/RigHierarchyDefines.h
Creates a collection containing an item chain
static [FRigElementKeyCollection](API\Plugins\ControlRig\Rigs\FRigElementKeyCollection) MakeFromChain ( [URigHierarchy](API\Plugins\ControlRig\Rigs\URigHierarchy) * InHierarchy, const [FRigElementKey](API\Plugins\ControlRig\Rigs\FRigElementKey) & InFirstItem, const [FRigElementKey](API\Plugins\ControlRig\Rigs\FRigElementKey) & InLastItem, bool bReverse )